JP2000350527A - Pulsating milking machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a user-friendly pulsating milking machine capable of readily exchanging parts. SOLUTION: This pulsating milking machine is equipped with a pulsating milking machine body having a negative pressure-generating part 116, a space part 118 for negative pressure whose interior becomes negative pressure and a space part 107 for pulsation formed in coupling to the space part 118 for negative pressure and a sucking storage part installed in the breasts, etc., of users and used for sucking and storing mother milk of users. The pulsating milking machine feathers being arranged so that the space part 118 for negative pressure and the space part 107 for pulsation are mutually separable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a breast pump used when a user expresses breast milk, and more particularly to a so-called pulsating breast pump for intermittently sucking breast milk.

[0002]

2. Description of the Related Art There are two main types of breast pumps: manual breast pumps and electric breast pumps. Of these, the manual breast pump is
The user operates the pump with his / her own hand and milks with the power of the pump. On the other hand, the electric breast pump uses a force of a motor or the like to operate a diaphragm or the like to generate a negative pressure in a certain space. Since this negative pressure state exists between this space and the user's breast, breast milk is sucked and stored in a predetermined bottle. As a pump unit for generating a negative pressure of the electric breast pump, for example, there is one as shown in FIG. As shown in FIG.
0 means that the power of the motor 11 is the reduction gears 12, 12, 12,
12. Specifically, first, an eccentric cam (not shown) is mounted on the shaft of the motor 11, and the connection rod 13 shown in FIG. 25 is engaged with the eccentric cam. This connection rod 13 is connected to a diaphragm 14 provided on a diaphragm back plate 15.

[0003] As a result, the rotation of the shaft of the motor 11 causes a vertical movement as shown in the figure, and the diaphragm 14 is moved up and down. The valve 14a of the diaphragm is connected to a hole provided in the negative pressure space 16a of the chassis 16 shown in FIG. Therefore, the negative pressure space is formed in the negative pressure space 16a by the movement of the diaphragm valve 14a. Next, on the negative pressure space 16a, two pulsation spaces 16b, 16b are formed integrally with the negative pressure space 16a. Holes are provided in the lower portions of these two pulsation spaces 16b, 16b, respectively, and are formed so as to communicate with the negative pressure space 16a via the holes. These two pulsation spaces 1
The control shaft 17 shown in FIG.
The control shafts 17 are inserted through upper openings, and control valves (not shown) are attached to lower ends of the control shafts 17, 17, respectively. When the control shaft 17 moves downward in the figure, the control valve closes the hole provided in the lower part of the pulsation space 16b, and communicates with the negative pressure space 16a provided thereunder. Will be cut off. When the control shaft 17 moves downward in the figure, the control valve opens the upper opening of the pulsation space 16b.

A control shaft 17 with a control valve having such a function is mounted on a seesaw 1 shown in FIG.
8 is engaged. And this seesaw 18 is shown in FIG.
The control gear (not shown) meshed with the reduction gears 12, 12, 12, 12 shown in FIG. The swing of the seesaw 18 causes the two control shafts 17 to alternately move up and down. By the way, the two pulsation spaces 16
The nozzles b and 16b communicate with the nozzles 19 and 19 shown in FIG. 24. The nozzles 19 and 19 are connected to a breast milk storage bottle (not shown) by a hose or the like. The breast milk storage bottle is provided with a bowl-shaped breast milk receiving portion that is in close contact with the breast of the user. When the pump unit 10 of the electric breast pump constructed as described above is operated, the diaphragm 14 moves by the rotation of the motor 11, and the negative pressure space 16a
Is negative pressure. On the other hand, the rotation of the motor 11 causes the control gear to rotate, causing the seesaw 18 to swing,
The two control shafts 17, 17 are alternately moved up and down. The pulsation space 16b, in which the control shaft 17 has moved downward, is disconnected from the negative pressure space 16a and is opened instead of the negative pressure. In addition, one pulsation space 16b in which the control shaft 17 has moved upward.
Is in a negative pressure state.

[0005] Here, the bottle for storing breast milk is
When the hose is connected to one of the nozzles 19 (see FIG. 24) using a hose, only one of the pulsation spaces 16b communicates with the breast milk storage bottle. , The negative pressure state and the open state are repeated. Thereby, it is possible to perform suction in a state that is not continuous suction but close to suction performed by an infant, that is, in a pulsating state, and more effective milking can be performed.

[0006]

The negative pressure space 16a and the pulsating space 16b forming the chassis 16 of the motor unit 10 of such a pulsating breast pump have a negative pressure acting as a suction force of the pulsating breast pump. It is an important part for generating the noise. Therefore, even if a slight defect occurs in these parts, it greatly affects the suction force of the pulsating breast pump, and the defective part has to be replaced. This problem often occurs only in one of the negative pressure space 16a and the pulsation space 16b of the chassis 16, but even in this case, the negative pressure space 16a and the pulsation space 16b are connected as described above. Since it is formed integrally, there is a problem that the entire chassis 16 needs to be replaced.

[0007] In view of the above, an object of the present invention is to provide a pulsating breast pump in which parts can be easily replaced and which is easy to use.

[0008]

SUMMARY OF THE INVENTION According to the present invention, there is provided a negative pressure generating section, a negative pressure generating section having a negative pressure inside the negative pressure generating section, and a negative pressure generating section. A pulsating breast pump comprising: a breast pump body having a pulsation space portion formed by being connected to a breast pump, and a suction storage section installed in a breast or the like of a user to suck and store the breast milk of the user. The pulsating breast pump is characterized in that the negative pressure space portion and the pulsation space portion are arranged so as to be separable from each other.

According to the above configuration, since the negative pressure space portion and the pulsation space portion are arranged so as to be separable from each other, only one of them can be separated and replaced.

Preferably, in the structure of the first aspect, the pulsation space is provided with a connecting projection for connecting to the negative pressure space, and the pulsation space is provided in the negative pressure space. A pulsating breast pump, characterized in that a coupling concave portion for coupling with the pulsating portion is provided, and a holding portion for holding the connection between the pulsating space portion and the negative pressure space portion is provided.

According to the above construction, the pulsation space is provided with a connection projection for connecting to the negative pressure space, and the negative pressure space is connected to the pulsation space. For this reason, the pulsation space and the negative pressure space can be easily connected by combining the connection protrusions and the connection recesses. In addition, since the holding portion for holding the connection between the pulsation space portion and the negative pressure space portion is provided, the connection between the pulsation space portion and the negative pressure space portion can be further strengthened. .

Preferably, in the configuration of claim 1 or 2, between the suction storage unit and the breast pump body,
A connection part for connecting these is provided, and an air chamber is provided on the connection part side of the suction storage part, and an uneven part is formed inside the air chamber. Pulsating breast pump.

According to the above configuration, since the air chamber is provided on the connection portion side of the suction storage portion, it is possible to prevent breast milk from flowing into the connection portion. In addition, since an uneven portion is formed inside the air chamber, the internal area of the air chamber increases, and the water vapor of the milk adheres to the inside of the air chamber, so that the milk flows into the connection portion. Can be prevented.

Preferably, claims 1 to 3 are provided.
In any of the above configurations, the suction storage unit includes a suction unit for sucking the breast milk of the user and a storage unit for storing the breast milk of the user, and the storage unit includes the suction unit. A pulsating breast pump, characterized in that a valve is provided for moving the breast milk of the user sucked in the part to the storage part, and a substantially central part of the valve is bent toward the suction part side. It is.

According to the above configuration, the substantially central portion of the valve is
Since the valve is bent toward the suction portion, the valve is bent in the closing direction. This ensures a negative pressure condition.

Preferably, claims 1 to 4 are provided.
In any one of the above configurations, the holder portions formed on both sides of the breast pump main body and the suction storage portion are provided with engaging portions for attaching the holder portion to the breast pump main body. A pulsating breast pump characterized in that it is used.

According to the above arrangement, the holder for mounting the suction storage section on both sides of the breast pump main body and the holder section on which the suction storage section can be placed is provided with an engaging section for attaching the holder section to the breast pump main body. Since each of them is provided, the holder can be easily attached to both sides or one side of the breast pump body.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to FIGS.
The embodiment described below is a preferred specific example of the present invention, and thus various technically preferable limitations are added. However, the scope of the present invention particularly limits the present invention in the following description. The embodiment is not limited to these embodiments unless otherwise stated.

FIG. 1 is a view showing a pulsating breast pump 100 according to an embodiment of the present invention. The pulsating breast pump 100 includes a pump unit 110 that is a breast pump body and bottle holders 120 and 120 that are holder units disposed on both sides thereof.
have. In addition, the pulsating breast pump 100 includes, for example, two bottle units 130, which are suction storage units. Further, the pulsating breast pump 100 is provided with two suction tubes 140, 140, which are connection portions for connecting the bottle unit 130 and the pump unit 110. Also, on the surface of the pump unit 110,
As shown in FIG. 1, a power switch 110a and a suction pressure adjustment dial 110b are arranged. FIG. 2 is a view of the pump unit 110 and the bottle holders 120, 120 viewed from the back side of FIG. As shown in FIG. 2, the pump unit 110 is provided with, for example, two nozzles 110d for connecting the intake tubes 140, 140. In addition, this pump unit 110 includes:
Battery storage unit 11 for storing a battery, for example, a power supply
0c is provided. Alternatively, an AC power supply can be used as the power supply. In this case, an AC power supply is connected to the AC power supply connection terminal 110e shown in FIG. 2 for use. Since the pump unit 110 generates a suction pressure for sucking the mother's milk as a user, the pump unit 110 will be described in detail below.

FIG. 3 shows a state in which the casing of the pump unit 110 shown in FIGS.
FIG. 5 is a view showing a central portion of a pump unit which is a central portion of the pump unit. FIG. 4 is an exploded perspective view showing the central part 110 of the pump unit shown in FIG. 3 in an exploded manner. As shown in FIG. 4, the motor 112 is accommodated in a motor plate 113. At this time, the motor shaft 11 of the motor 112
2a is the motor plate hole 11 of the motor plate 113;
3a, and the eccentric cam 114 is attached to the tip thereof. The tip of the eccentric cam 114 has a gear 114a
Is provided. The eccentric cam 114 is engaged with a connection rod 115 connected to a diaphragm 116 which is a negative pressure generating section. The diaphragm 116 is mounted on the diaphragm back plate 117. The connection rod 11
5 is engaged with the eccentric cam 114 in a state where it is inserted into a round hole provided in a chassis 118 which is a negative pressure space.

On the other hand, the gear 114a is
4b, and two reduction gears 114b, 114
b are connected in a meshing state. Furthermore, this reduction gear 1
14b is engaged with the control gear 114.
The seesaw 119 is engaged with the control gear 114c. The reduction gear 11
4b, 114b, 114b and control gear 114c
Are supported by stainless steel bars 109, 109. The seesaw 119 is engaged with two control shafts 108, 108. The two control shafts 108, 108 are lower than an opening provided on an upper portion of a seesaw base 107 which is a pulsating space. The nozzle openings 107d, 10d
7d, a control valve 108a previously arranged in
108a. Below the seesaw base 107, two seesaw base connecting portions 107a, which are connecting protrusions for connecting to the chassis 118, are provided. This seesaw base connecting part 107
The O-ring 106 is mounted on the a and 107a.
On the other hand, on the upper part of the chassis 118, two chassis connecting portions 118a, which are connecting concave portions, are provided. Therefore, the seesaw base 107 and the chassis 118 are integrally connected by inserting the seesaw base connecting portions 107a and 107a into the chassis connecting portions 118a and 118a. At this time, since the O-ring 106 is mounted on the seesaw base connecting portions 107a, 107a, they are connected while maintaining airtightness.

The chassis 118 is provided with a chassis opening 118b.
8b, the valves 103 and O shown in FIG.
A ring 106 is arranged. This valve 103 and O
The ring 106 is fixed to the leaf spring 102 with a fastener (not shown) via a suction pressure adjusting hole 104 a of the chassis cover 104. A suction pressure adjusting dial 110b is arranged on the chassis cover 104. The suction pressure adjustment dial 110b is provided with a groove, and the adjustment pin 105 is disposed in contact with the groove. The adjustment pin 105 is configured to move in the left and right direction in the figure by rotating the suction pressure adjustment dial 110b. By the way, the chassis cover 104 as the holding portion is pressed against the chassis 118 and fixed. At this time, since the chassis cover 104 is disposed so as to press not only the chassis 118 but also the seesaw base 107, the connection state between the seesaw base 107 and the chassis 118 is further strengthened. By the way, a leaf spring 102 made of sheet metal is arranged on the chassis cover 104. One end of the leaf spring 102 is fixed by a leaf spring retainer 102a. However, the other end of the leaf spring 102 is not fixed,
The leaf spring 102 is pressed against the surface of the chassis cover 104 by the elasticity of the leaf spring 102 itself. Further, since the tip of the above-described adjustment pin 105 is in contact with the other end of the leaf spring 102, the movement of the adjustment pin 105 causes the leaf spring 102 to move, and the valve 103 connected thereto. Is chassis 11
8 with respect to the chassis opening 118b.

The central part 111 of the pump unit shown in FIG.
Is configured as described above and operates as follows.
First, the user turns on the power switch 110a shown in FIG.
In this state, the motor 112 starts to rotate using the battery housed in the battery housing 110c shown in FIG. 2 as a power source. The rotation of the motor 112 causes the eccentric cam 114 to rotate in an eccentric state. This eccentric cam 114
Is engaged with the connection rod 115 connected to the diaphragm 116, so that the connection rod 115 moves up and down. FIG. 5 shows this state. As shown by the arrow A in FIG. 5, the diaphragm 116 moves up and down, thereby generating a flow of air as shown by the arrow B. At this time, diaphragm 1
Since the diaphragm holes 116b near the 16 diaphragm valves 116a are connected to the diaphragm connection holes 118c of the chassis 118, a negative pressure is generated in the chassis 118. FIG. 6 shows the diaphragm connection hole 118c. FIG. 6 is a bottom view of the chassis 118. As shown in FIG. 6, the connecting hole 11 for the diaphragm is formed on the bottom of the chassis 118.
8c is provided. This diaphragm connection hole 11
8c is a chassis opening 1 of the chassis 118 shown in FIG.
18b, the chassis opening 118 and the diaphragm hole 116b communicate with each other.

As shown in FIG. 7, the chassis opening 118 is formed into two portions or two portions connected to the chassis connecting portions 118a, 118a. Referring to FIG. This chassis connecting portion 118
It can be seen that a and 118a are open. Thus, the chassis 118 has a chassis opening 118b,
Diaphragm connection hole 118c and chassis connection portion 11
Portions other than 8a and 118a are closed spaces. Then, since the chassis opening 118b is closed by the chassis cover 104 as described above, the inside of the chassis 118 is brought into a negative pressure state by the diaphragm 116. The negative pressure state of the chassis 118 also causes a negative pressure state inside the seesaw base 107 via the seesaw base connecting portions 107a of the seesaw base 107. By the way, when the motor 112 rotates, the gear 114a shown in FIG. 4 starts rotating in addition to the eccentric cam 114, and the reduction gear 1 meshed with the gear 114a.
The speed is reduced by 14b. The control gear 11 meshed with the third reduction gear 114b
4c starts to rotate. The control gear 114c has a specific groove as shown in FIG. 4, and the seesaw 119 is engaged with a part of the groove.

FIG. 9 shows this state. FIG.
As shown in the figure, the seesaw convex portion 11 of the seesaw 119
9a will engage. This control gear 11
The circular motion of 4c is changed into swing of the seesaw 119 by the groove. The pivot of the seesaw 119 is a pivot 119b of the seesaw shown in FIG. 4, and the pivot 119b of the seesaw is
07 is inserted into the seesaw receiving portion 107b. Also, two control shafts 108 shown in FIG. 4 are attached to the seesaw 119. FIG. 10 shows this state. As shown in FIG. 10, the two control shafts 108, 108 will be engaged with cutouts on both sides of the seesaw 119. The control shafts 108, 108 are inserted into the seesaw base 107 as described above, and the control valves 108a, 108a are mounted below the control shafts. FIG. 11 is a front view showing the seesaw base 107, and FIG. 12 is a plan view of the seesaw base 107. As shown in FIG.
Are formed with two control shaft holes 107c into which the control shaft 108 is inserted. The control shaft hole 107c communicates with the nozzle opening 107d shown in FIG.

However, these two nozzle openings 10
7d, 107d and two control shaft holes 107
c and 107c are not communicated with each other, but each are separately communicated with the seesaw base coupling portions 107a and 107a. Such a control shaft hole 107
Control shafts 108 and 108 are arranged in c and 107c, respectively. In this state, the seesaw 119 is
When the rocking motion is performed, the control shafts 108 alternately move up and down as shown in FIG.
When the control shaft 108 moves downward and reaches the bottom of the nozzle openings 107d and 107d shown in FIG. 11, the seesaw connecting portion 107a is closed by the control valve 108a provided on the control shaft 108. Become. At this time, the closed seesaw base 10
In the internal space 7, the above-described negative pressure state of the chassis 118 is not transmitted, but rather, it is opened to the atmosphere due to a gap between the control shaft 108 and the control shaft hole 107 c of the seesaw base 107. On the other hand, control axis 1
When 08 moves upward, a space is created between the control valve 108a attached to the control shaft 108 and the seesaw connecting portion 107a, and the upper end of the control valve 108a closes the lower end of the control shaft hole 107c. Will be. Therefore, the above-described chassis 118
, A negative pressure condition will also occur in the seesaw base 107. Thus, the negative pressure state and the atmosphere open state
Pulsation, which will be described later, is caused by alternately causing the movement of the control shafts 108, 108.

By the way, the two nozzle openings 107d, 107d provided in the seesaw base 107 are
As shown in FIG. 4, the nozzle 11 of the chassis cover 104
0d and 110d, respectively, and intake tubes 140 and 140 are connected to the nozzles 110d and 110d as shown in FIG. In order for the mother to adjust the negative pressure generated inside the chassis 118, the mother operates the suction pressure adjustment dial 110b shown in FIG. 4 by operating the mother. That is, the suction pressure adjustment dial 110b is specifically configured as shown in FIG. As shown in FIG. 13A, the suction pressure adjusting dial 110b is provided with a spiral groove having a different thickness, and the adjusting pin 105 comes into contact with the groove. The suction pressure adjusting dial 110b can be operated by the mother from outside the pump unit 110 as shown in FIG. Therefore, when the mother operates and turns the suction pressure adjustment dial 110b, the thickness of the groove of the suction pressure adjustment dial 110b with which the adjustment pin 105 is in contact changes. Here, for example, when the thickness of the groove is increased, the adjustment pin 105 pushes the leaf spring 102 as shown in FIG. Since the leaf spring 102 and the valve 103 shown in FIG. 4 are connected as described above, the valve 103 is also connected to the chassis 11.
8 moves in a direction away from the chassis opening 118b,
The negative pressure (suction pressure) becomes small. Conversely, when the thickness of the groove of the suction pressure adjustment dial 110b is reduced, the valve 103 is pushed into the inside of the chassis opening 118b, and the negative pressure (suction pressure) increases. In this way, the mother adjusts the negative pressure.

As described above, the pump unit 110 is configured and operates, but the bottle unit 1 connected to the pump unit 110 via the suction tube 140 is operated.
30 will be described below. FIG. 14 is an exploded perspective view of the bottle unit 130. As shown, the bottle unit 130 has a suction unit for sucking mother's milk,
And a storage unit for storing breast milk. The suction unit includes a milking cap 133, a disk 134, an inner plug 135, a cylinder 136, and a breast shield 137. Among them, breast shield 13
Numeral 7 has a breast milk receiving portion 137a, which is a part that the mother wears on her own breast. A separate non-slip portion (not shown) may be used for the breast milk receiving portion. That is, this is a case where the non-slip portion is mounted on the inner surface of the breast milk receiving portion so that the uneven portion is arranged in a portion that comes into contact with the mother's breast. The cross section of the breast shield 137 is shown in FIG.
As shown in FIG. The formed cage has a cross section as shown in FIG. That is, as shown in FIG. 15, inside the breast shield 137, the breast shield 137 communicates with the internal space of the breast milk receiving portion 137a.
It is formed so as to guide upward and downward in the figure.

An opening 137b above the breast shield 137 has a cylinder 136 and a disc 134 shown in FIG.
Is inserted. FIG. 15A shows a state in which the inner plug 135 and the like are inserted. FIG. 16 specifically shows the structure of the inner plug 135 and the like. As shown in FIG. 16, a disc hole 134a is provided at the center of the disc 134, and the disc hole 134a is used for the inner plug holes 135a and 135a of the inner plug 135.
Through the breast shield 137 of FIG. In addition, the inner plug main body 135b of the inner plug 135 is vertically movable in the drawing, and the inner plug main body 135b is moved upward, so that the inner plug convex portion 135 of the inner plug 135 is moved.
When c and 135c come into contact with the disk 134, this movement stops and the communication between the disk hole 134a of the disk 135 and the inner plug hole 135a of the inner plug main body 135 is stopped. Also, on the inner stopper 135 and the like, FIG.
As shown in FIG. 4, a milking port cap 133 that is an air chamber is provided. FIG. 17 shows the structure of the milking cap 133. As shown in FIG. 17, an intake tube hole 133a for connecting the intake tube 140 shown in FIG. 1 is provided in the upper part of the milking opening cap 133. Further, an uneven portion is provided on the inner peripheral portion 133b of the milking cap 133.

The formation of the uneven portions is performed by, for example, corrosion processing. In this corrosion process, the inner peripheral portion 133b of the milking cap 133 is etched using a chemical to remove an unnecessary portion, thereby forming an uneven portion. Also,
As another method of forming the uneven portion, there is a blasting method of spraying sand or the like on the mold to damage the mold. In this way, the milking opening cap 133 having the concave and convex portions on the inner peripheral portion 133b is fixed to the breast shield 137 shown in FIG. On the other hand, what constitutes a storage unit for storing breast milk is shown in FIG.
4, a bottle 132, a valve 132, a check valve 139, and the like. This check valve 139
Is mounted so as to be inserted into the lower end of the breast shield 137 shown in FIG. A valve 132 is attached to the lower end of the check valve 139. This valve 132
As shown in FIG. 18, the valve 132 is closed or opened by moving the movable piece 132a. FIG. 19 is a view showing a cross section of the valve 132. As shown in FIG. 19, the upper ends on both sides of the valve 132 are thicker than other portions. Therefore, this valve 132 is connected to the check valve 1
When attached to 39, the above-mentioned thick portion spreads outward. As a result, the movable piece 132a, which is a substantially central portion of the valve 132, is bent upward in the drawing.
When the movable piece 132a of the valve 132 bends upward as described above, the movable piece 132a is arranged in a direction for holding the valve 132 in a closed state.

The operation and the like of the bottle unit 130 configured as described above will be described below. First, as shown in FIG.
Attach the intake tube 140 to. Then, the breast milk receiving portions 137a and 137a of the breast shields 137 and 137 of the two bottle units 130 are brought into close contact with both breasts of the mother as the user as shown in FIG. When the power switch 110a of the pump unit 110 is turned on in this state, the central part 111 of the pump unit starts to move as described above. Due to the operation of the central part 111 of the pump unit, the two nozzles 110d and 110d of the pump unit 110 alternately repeat suction and release to the atmosphere. These two nozzles 1
The suction and opening to the atmosphere at 10d and 110d are performed through the intake units 140 and 140, respectively.
30 will be transmitted. That is, in the case of the suction state, the suction pressure passes through the suction tube 140, passes through the milking mouth cap 130, passes through the disc hole 134a shown in FIG.
It passes through the inner stopper hole 135a and reaches the inside of the breast shield 137 shown in FIG.

At the lower end of the breast shield 137, a check valve 139 having a valve 132 is provided.
The movable piece 132a of the 32 will be pulled upward in the figure, whereby the valve 132 will be kept closed. At this time, even if the suction pressure is slightly small, since the movable piece 132a of the valve 132 is bent and held upward as described above, the movable piece 132a
Does not move downward to reduce the suction pressure. As described above, since the lower end of the breast shield 137 is closed by the valve 132, the suction pressure in the breast shield 137 reaches the breast milk receiving portion 137a,
The mother's breast placed there will be sucked. The breast milk milked by the suction pressure is moved along the breast shield 137 along the breast milk receiving portion 137a shown in FIG.
Through the check valve 139 and through the valve 132
Will be reached. At this time, when the sucking stops due to the pulsation and the breast milk accumulates in the vicinity of the valve 132, the movable piece 132a of the valve 132 moves downward by its weight, and the breast milk falls into the bottle main body 131.

If the breast milk is accumulated in the breast shield 137 before the milk is dropped into the bottle main body 131 by its own weight due to a large amount of milk, the accumulated breast milk pushes up the cylinder 136 shown in FIG. By raising the cylinder 136, the inner plug main body 135b is pushed up, and the inner plug convex portion 135 is raised.
c hits the disk 134, thereby blocking communication between the space below the inner plug body 135b and the space above the disk 134. With this cutoff, the suction pressure of the pump unit 110 is interrupted at the disk 134 portion, so that the milk does not move to the pump unit 110 side any more, and it is possible to prevent the milk from flowing into the pump unit 110 side. . Thus, by preventing the breast milk from flowing into the pump unit 110, the failure of the pump unit 110 can be prevented. A milking mouth cap 133 is disposed on the inner plug 135 and the like.
Since the inner peripheral portion 133b (see FIG. 17) of 33 is provided with an uneven portion, the uneven surface portion increases the surface area and the amount of adsorption. Inflow will be effectively prevented. Furthermore, since the inlet tube hole 133a of the milking mouth cap 133 is provided at the upper end of the milking mouth cap 133 as shown in FIG. 17, the position is less affected by breast milk.

On the other hand, when the pump unit 110 is open to the atmosphere, milking is not performed in the bottle unit 130. Thus, by using the pump unit 110 and the bottle unit 130 of the present embodiment, both breasts can be milked at the same time, and this milking is performed by so-called pulsation that repeats suction and opening to the atmosphere. Can be. Pump unit 1
Since the ten chassis 118 and the seesaw base 107 are separable, if one of them is broken, only the other can be replaced, so that the cost can be reduced and the usability is improved. After performing milking using the pump unit 110 and the bottle unit 130 as described above, as a place where the two bottle units 130 and 130 are placed,
As shown in FIG. 1, bottle holders 120 serving as holder portions are provided on both sides of the pump unit 110. Thus, the mother who has finished milking will replace the two bottle units 130, 130 with these bottle holders 120, 12
0. In addition, the bottle holders 120, 120
0 and can be easily removed. More specifically, as shown in FIG.
20 are provided with engaging projections 110e, 110e. The engagement projection 110e has a semi-elliptical shape as shown in FIG.

On the other hand, as shown in FIG. 23, the bottle holder 120 is provided with a bottle holder engaging concave portion 120a corresponding to the engaging convex portion 110e. Therefore, the bottle holder 120 is attached to the pump unit 110 by inserting the engagement protrusion 110e of the pump unit 110 into the bottle holder engagement recess 120a. When the mother who is the user uses only one bottle unit 130, one bottle holder 120 may be attached to any one of the pump units 110, and the space where the pulsating breast pump 100 is placed is small. I'm done.

[0036]

As described above, according to the present invention, it is possible to provide a pulsating breast pump in which parts can be easily replaced and which is easy to use.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a pulsating breast pump according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view showing a pump unit and the like of the pulsating breast pump of FIG. 1;

FIG. 3 is a schematic perspective view showing a central portion of a pump unit.

FIG. 4 is an exploded perspective view of a central portion of the pump unit of FIG. 3;

FIG. 5 is an explanatory diagram showing a relationship between a motor and a diaphragm in FIG. 4;

FIG. 6 is a bottom view of the chassis of FIG. 4;

FIG. 7 is a front view of the chassis of FIG. 4;

FIG. 8 is a plan view of the chassis of FIG. 4;

FIG. 9 is an explanatory diagram showing the relationship between the control gear and the seesaw of FIG. 4;

FIG. 10 is an explanatory diagram showing a relationship between the seesaw of FIG. 4 and a control axis.

FIG. 11 is a front view of the seesaw base of FIG. 4;

FIG. 12 is a plan view of the seesaw base of FIG. 4;

FIG. 13 is an explanatory diagram showing a relationship between a suction pressure adjustment dial and an adjustment pin. (2) It is explanatory drawing which shows the relationship between a suction pressure adjustment dial and a leaf spring.

FIG. 14 is an exploded perspective view showing a bottle unit of the pulsating breast pump of FIG. 1;

FIG. 15 is a sectional view showing the breast shield of FIG. 14;

FIG. 16 is a schematic sectional view showing a state where the disk, inner plug, and cylinder of FIG. 14 are connected.

FIG. 17 is a sectional view showing the milking mouth cap of FIG. 14;

FIG. 18 is a plan view showing the valve of FIG.

FIG. 19 is a sectional view showing the valve of FIG. 14;

FIG. 20 is a diagram showing a state where the mother is using a pulsating breast pump.

FIG. 21 is a plan view showing the relationship between the pump unit of FIG. 1 and an engagement protrusion.

FIG. 22 is a side view of the pump unit of FIG. 21.

FIG. 23 is a plan view showing an engaged state between the pump unit and the bottle holder in FIG. 1;

FIG. 24 is a perspective view showing a conventional pump unit.

FIG. 25 is a schematic exploded view of the pump unit of FIG. 24;

[Explanation of symbols]

100: pulsating breast pump, 102: leaf spring, 103: valve, 104: chassis cover, 105: adjusting pin, 106: O-ring, 1
07: seesaw base, 108: control shaft, 109: stainless steel rod, 110: pump unit, 112: motor, 113: motor plate, 114: eccentric cam, 115 ..Connection rod, 116 ... diaphragm, 117 ... diaphragm back plate, 118 ... chassis, 119 ...
Seesaw, 120 ... bottle holder, 130 ... bottle unit, 131 ... bottle body, 132 ...
Valve 133: milking cap, 134: disk,
135: Inside plug, 136: Cylindrical, 137: Breast shield, 139: Check valve

Claims (5)

[Claims] A negative pressure generating section; a negative pressure generating section in which the negative pressure is generated by the negative pressure generating section; a pulsating space formed by being connected to the negative pressure generating section; In a pulsating breast pump comprising: a breast pump body having: a suction storage unit that is installed on a user's breast or the like and sucks and stores the user's breast milk, wherein the negative pressure space portion and the pulsation space portion are A pulsating breast pump, which is arranged to be separable from each other. 2. The pulsation space portion is provided with a connection protrusion for connecting to the negative pressure space portion, and the connection recess portion for connecting to the pulsation space portion is provided in the negative pressure space portion. 2. The pulsating breast pump according to claim 1, further comprising a holding portion for holding the connection between the pulsating space portion and the negative pressure space portion. 3. A connection section for connecting the suction storage section and the breast pump body is provided between the suction storage section and the breast pump body,
The pulsating milking according to claim 1 or 2, wherein an air chamber is provided on the connection section side of the suction storage section, and an uneven portion is formed inside the air chamber. vessel. 4. The suction storage section has a suction section for sucking the breast milk of the user and a storage section for storing the breast milk of the user. A valve for moving the sucked user's breast milk to the storage unit is provided, and a substantially central portion of the valve is formed to bend toward the suction unit side. Item 3
The pulsating breast pump according to any one of the above. 5. A holder formed on both sides of the breast pump main body and on which the suction storage section can be placed is provided with an engagement portion for attaching the holder to the breast pump main body. The pulsating breast pump according to any one of claims 1 to 4, wherein